Connection method for rotating rectifiers on a generator

Abstract

An annular bus ring assembly for connecting main rotor windings of a generator to the exciter diodes includes a plurality of annular bus rings with tabs bent over forming plurality of pads mounted on either side of a dielectric hub. The pads of annular bus rings clocked at an angle to each other to generate a pattern of plurality of pads on a equal angle spacing on a diameter to connect to the diodes by wire rope leads and a pattern of two connection at 90° spacing to connect to main generator leads.

1. An annular bus ring assembly for connecting main rotor windings of a generator to exciter diodes comprising:
 a plurality of annular bus rings; 
 a plurality of leads connecting the annular bus rings to respective ones of the exciter diodes; and 
 a dielectric hub having castellations supporting the plurality of annular bus rings, the castellations aligning with the annular bus rings pads; 
 wherein said annular bus rings, with tabs bent over forming a plurality of pads, are mounted on the dielectric hub, and pads of said annular bus rings are spaced apart on the dielectric hub at an equal angle to each other, and two of the plurality of leads are spaced 90° from each other relative to an axis passing through centers of at least two of the plurality of annular bus rings. 
 
     
     
       2. The annular bus ring assembly of  claim 1 , wherein the plurality of annular bus rings includes only two annular bus rings. 
     
     
       3. The annular bus ring assembly of  claim 1 , wherein the plurality of pads in each annular bus ring is three pads. 
     
     
       4. The annular bus ring assembly of  claim 3 , wherein the pads of the annular bus ring are spaced at 60° from each other relative to an axis passing through centers of at least two of the plurality of annular bus rings. 
     
     
       5. The annular bus ring assembly of  claim 3 , wherein three pads of a first annular bus ring of the plurality of annular bus rings are respectively connected to three anode diodes,
 and three pads of a second annular bus ring of the plurality of annular bus rings are respectively connected to three cathode diodes and two of the leads are connected to the main leads of the generator. 
 
     
     
       6. The annular bus ring assembly of  claim 1 , wherein the plurality of leads are braided wire rope leads. 
     
     
       7. The annular bus ring assembly of  claim 6 , wherein the braided wire rope leads have a crimp connector at each end. 
     
     
       8. The annular bus ring assembly of  claim 7 , wherein the crimp connector at one end of the braided wire rope leads is a ring terminal. 
     
     
       9. The annular bus ring assembly of  claim 1 , wherein the dielectric hub is configured with an annular groove for supporting a wire wound resistor. 
     
     
       10. A power generating system, comprising:
 an outer supporting ring enclosing an annular bus ring assembly; 
 the annular bus ring assembly connecting main rotor windings of a generator to exciter diodes and having a dielectric hub configured with castellations to support a plurality of annular bus rings with tabs bent over forming a plurality of tabs; 
 the annular bus rings mounted on the dielectric hub, pads of the annular bus rings aligned about the dielectric hub at an equal angle spacing to each other, and two leads, connecting to a main generator lead, are spaced at 90° to each other; 
 three anode diodes connected to plurality of pads of one or more annular bus rings; and 
 three cathode diodes connected to the plurality of pads of the one or more annular bus rings by a plurality of braided wire rope leads. 
 
     
     
       11. A method of connecting main rotor windings of a generator to exciter diodes, the method comprising:
 mounting two annular bus rings having three pads each on a dielectric hub; 
 aligning three pads of each annular bus rings at 60° to each other to generate a pattern of six pads each on a 60° spacing and main leads at 90° spacing to each other for connecting to the main generator leads; 
 electrically connecting three pads of the first annular bus rings to three anode diodes and connecting three pads of second annular bus rings to the cathode diodes; 
 connecting two leads of the annular bus ring assembly with main leads on the generator. 
 
     
     
       12. The method of  claim 11 , further comprising configuring the dielectric hub with castellations for supporting and aligning the annular bus rings tabs. 
     
     
       13. The method of  claim 11 , further comprising configuring the dielectric hub with an annular groove for supporting a wire wound resistor. 
     
     
       14. The method of  claim 11 , further comprising laminating the dielectric hub for insulation. 
     
     
       15. The method of  claim 11 , wherein pads of the annular rings are formed by bending over the tabs of the annular bus rings. 
     
     
       16. The method of  claim 11 , wherein wire rope leads connect the rotor with the diodes. 
     
     
       17. The method of  claim 16 , further comprising braiding the wire rope leads connecting the rotor with the exciter diodes. 
     
     
       18. The method of  claim 17 , further comprising brazing another end of braided wire rope leads to the connector tab of annular bus ring. 
     
     
       19. The method of  claim 11 , further comprising closing the annular bus ring assembly in an outer support ring. 
     
     
       20. The method of  claim 11 , further compromising ruggedizing the annular bus ring assembly and outer support ring by potting the voids with epoxy.